Jane Street
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Jane Street’s The Southern Company 2025 Series A Corp Units SOMN Stock Holding History

Jane Street’s Portfolio SOMN Stock Details SOMN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$3.28M Buy
65,945
+14,089
+27% +$715K ﹤0.01% 4350
2026
Q1 		$2.67M Sell
51,856
-1,233,497
-96% -$63.5M ﹤0.01% 4564
2025
Q4 		$64.7M Buy
+1,285,353
New +$63.7M 0.01% 788

Other funds holding SOMN

Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return
VOYA Investment Management
VOYA Investment Management Atlanta, Georgia $116B AUM 61.47% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Calamos Advisors
Calamos Advisors Naperville, Illinois $30.1B AUM 30.03% 1-Year Est. Return
Manulife (Manufacturers Life Insurance)
Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada $128B AUM 35.83% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return
PSC
Portman Square Capital London, United Kingdom $1.77B AUM 15.29% 1-Year Est. Return
Advent Capital Management
Advent Capital Management New York $4.46B AUM 0.73% 1-Year Est. Return

Jane Street's SOMN Position: Q2 2026 in Review

Jane Street increased its The Southern Company 2025 Series A Corp Units (SOMN) stake by 27% in Q2 2026, buying an estimated $715K and bringing the position to 65,945 shares worth $3.28M. The position accounts for ﹤0.01% of the portfolio, ranked #4350.

Jane Street first reported a position in SOMN in Q4 2025 and has held it in 3 quarters since. The position peaked at $64.7M in Q4 2025. 48 funds tracked by Wall St. Rank hold SOMN as of Q2 2026.

  • Jane Street held 65,945 shares of The Southern Company 2025 Series A Corp Units worth $3.28M as of Q2 2026.
  • Jane Street bought 14,089 The Southern Company 2025 Series A Corp Units shares in Q2 2026, an estimated $715K.
  • The Southern Company 2025 Series A Corp Units made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #4350 holding.
  • Jane Street first reported a position in The Southern Company 2025 Series A Corp Units in Q4 2025 and has held it in 3 quarters since.
  • Jane Street's The Southern Company 2025 Series A Corp Units position peaked at $64.7M in Q4 2025.
  • 48 funds tracked by Wall St. Rank held The Southern Company 2025 Series A Corp Units as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.